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SGM812 - Microprocessor Supervisory

Download the SGM812 datasheet PDF. This datasheet also covers the SGM811 variant, as both devices belong to the same microprocessor supervisory family and are provided as variant models within a single manufacturer datasheet.

General Description

The SGM811/SGM812 supervisory circuits monitor the power supply voltage in microprocessor and digital systems.

The SGM811/SGM812 are designed to monitor eight different voltages; these voltages have been selected for the effective monitoring of 1.8V, 2.5V, 3V, 3.3V and 5V supply voltage levels.

Key Features

  • Superior Upgrade for MAX811/MAX812 and ADM811/ADM812.
  • Full Specified over Temperature.
  • Low Power Consumption: 13μA (TYP).
  • Precision Voltage Monitor: 1.8V, 2.5V, 3V, 3.3V and 5V Options.
  • Reset Assertion Down to 1V VCC.
  • 150ms (MIN) Power-On Reset Logic Low nRESET Output (SGM811) Logic High RESET Output (SGM812).
  • Manual Reset Input.
  • Available in Green SOT-143 and SOT-23-5 Packages.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SGM811_ShengbangMicroelectronics.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SGM812
Manufacturer SG Micro
File Size 690.85 KB
Description Microprocessor Supervisory
Datasheet download datasheet SGM812 Datasheet

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Other Datasheets by SG Micro

Part Number Description
SGM810 Microprocessor Supervisory
SGM811 Microprocessor Supervisory
SGM800 SOT uP Reset
SGM802 low-power micro-processor supervisor
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SGM811/SGM812 Microprocessor Supervisory Circuits with Manual Reset Input GENERAL DESCRIPTION The SGM811/SGM812 supervisory circuits monitor the power supply voltage in microprocessor and digital systems. The SGM811/SGM812 are designed to monitor eight different voltages; these voltages have been selected for the effective monitoring of 1.8V, 2.5V, 3V, 3.3V and 5V supply voltage levels. They provide a reset output during power-up, powerdown and brownout conditions. On power-up, an internal timer holds reset asserted for 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The nRESET output remains operational with VCC as low as 1V. The SGM811 provides an active low reset signal (nRESET) while the SGM812 provides an active high signal (RESET) output.